RCW 43.216.020 establishes the department of children, youth, and families (DCYF) as the state lead agency for Part C of the federal Individuals with Disabilities Education Act (IDEA). RCW 43.216.020 also requires that DCYF develop and adopt rules that establish minimum requirements for the services offered through IDEA Part C programs, including allowable allocations and expenditures for transition into IDEA Part C. Federal authority for this chapter is 20 U.S.C. Sec. 1431-1444 and the Part C regulations in 34 C.F.R. Part 303, and DCYF is the state lead agency for receipt of federal funds for early intervention services. DCYF's responsibilities include, but are not limited to, coordination of all funding and oversight of state and federal funding allocated to implement early intervention services.